Hitachi IR.Station, Hardware Manual

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7 MAINTENANCE
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7.1 Preventive Maintenance
For optimum use of the S10mini, it is essential that you carry out the following maintenance
ever now and then (at least 2 times a year).
Preventive maintenance items
Module appearance check
Screw/terminal strip screw looseness check
Cable/wire coating check
Dust adhesion check
AC supply voltage check (85 to 132 V)
Indicator devices check
5 V supply voltage check
Module appearance check
Check to see whether the module case is cracked or otherwise broken. If the case is
damaged, the internal circuit may also be damaged which may due in malfunction of the
system.
Condition of the indicators – lights and contents
Check the indicators for abnormalities.
Screw/terminal strip screw looseness check
Check that the module mounting screws and terminal strip screws are loose.
Any loose screws must be tightened because this may cause the system to malfunction or end
up with the components to burn out due to generated heat.
Module replacement
If you replace the module while the power is ON, the hardware and software may be
damaged. Before replacing the module, be sure to turn OFF the power.
Cable coating check
Check whether the cable coating is in good condition. If the cable coating is peeled or
damaged, system malfunction, electric shock, or shorting-induced component burnout may
result.
CAUTION
Static electricity may damage the module. Before starting the work, discharge all
electrostatic charge from your body.